Error: Thumbnail could not be created for the image. Please make sure the thumbnail directory is writable.
I've recently upgraded a client's site to v2.5.5 and they are now not able to upload images. I've verified all permissions are correct and I've also reviewed the EE Wizard details (no errors there either). They were successfully uploading images in the weeks prior to the upgrade.
Any idea what could be causing this?
- EE 2.5.5
- Windows 2008 Server
- PHP 5.3.10